What is a bund?

A bund (or catchpit) is a secondary containment system designed to prevent fuel loss from the tank escaping to the environment. Bunds may be constructed from masonry or concrete to contain a single skin oil storage tank and must be able to hold at least 110% of the tank’s contents in the event that a leak or overspill occurs. Integrally bunded oil storage tank systems are available and provide a practical solution to satisfying environmental protection requirements.